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4 years ago

If you add two batteries to a circuit, the resistance will

1 answer:

7 0

<span>If you add two batteries to a circuit, the resistance will stay the same.

Unless you're working with toasters, electric stoves, or high-power
floodlights, the circuit voltage has no effect on the total resistance.</span>

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The speed of light in vinegar is 2.30 x 10^8 m/s. Determine the index of refraction. (2

pantera1 [17]

Answer:

$n _{v} = \frac{c}{v} \\ = \frac{3 \times {10}^{8} }{2.30 \times {10}^{8} } \\ = 1.30$

6 0

3 years ago

Vector A→, having magnitude 2.5m, pointing 37∘ south of east and vector B→ having magnitude 3.5m, pointing 20∘ north of east are

ahrayia [7]

Answer:

Magnitude of the resultant vector is R = 6.81 m

Explanation:

Given :

Vector A having magnitude of 2.5 m

Vector A having direction 37 degree south of east.

Vector B having magnitude of 3.5 m

Vector B having direction 20 degree north of east.

Therefore, the angle between the two vectors is, θ = 37+20 = 57 degree

So, the resultant of the two vectors are given by

$R = \sqrt{A^2+B^2+2AB \cos \theta}$

$R = \sqrt{2.5^2+3.5^2+2(2.5)(3.5) \cos 57}$

$R = \sqrt{6.25+12.25+17.5 \times 0.54}$

$R = \sqrt{46.45}$

R = 6.81 m

3 0

3 years ago

What is the force on object exerts on another?<br>

vagabundo [1.1K]

Normal contact force

3 0

3 years ago

A man is trying to push a 250 N dresser across his carpeted bedroom. He applies a force of 20 N and the carpet provides a fricti

11111nata11111 [884]

Answer:

The correct option is;

B. Subtract vectors A from C; $F_{Net}$ = 12 N

Explanation:

The given parameters are;

The weight of the dresser = 250 N

The force applied by the man = 20 N = C

The frictional force provided by the carpet = 8 N = The component of the weight resisting motion = A

Therefore, the net force tending to put the dresser in motion, $F_{Net}$ , is given as follows;

$F_{Net}$ = The force applied by the man, C - The frictional force provided by the carpet which is the component of the weight resisting motion, A

$F_{Net}$ = C - A = 20 N - 8 N = 12 N

$F_{Net}$ = 12 N

The resulting net force, $F_{Net}$ = 12 N.

3 0

3 years ago

What are three reasons why nebulae contribute more to stellar formation than other regions of the universe?

statuscvo [17]

Answer:

Nebulae contribute more to stellar formation than other regions because:

Explanation:

A.They have an unlimited supply of hydrogen.

B. They are believed to be rich in hydrogen and helium.

C. They have a three strong gravitational pull.

This are the reasons that Nebulae contribute more to stellar formation than other regions.

5 0

3 years ago